单词学习：underpinning 名词
underpinning
/ˌʌndərˈpɪnɪŋ/
n. 基础，支柱；支撑结构；理论依据
The theoretical underpinning of Professor Gu's research is widely recognized in the academic community.
顾老师研究的理论依据在学术界得到了广泛认可。
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